Who knew snakes poo?

At a recent visit to the zoo I had the misfortune of stumbling upon a display with multiple choice questions asking, "Whose poop is this?" This one was the best (and the worst):

So, whose poo do you think this is? Your choices are Amy Winehouse, Britney Spears, Steve-O, or an emerald tree boa. And the answer is...

The least obvious choice-- the emerald tree boa. According to the zoo display, the white part is crystalized urine, making this a pee-poo combination. Ick.